Our company has recently developed several high-performance new composite quantum dots (see the table below). These new quantum dots exhibit high fluorescence intensity, narrow full width at half maximum, and excellent fluorescence stability, showing great application prospects in fields such as LEDs, lasers, and other related optoelectronic devices. At the same time, our R&D team is continuously developing more types of high-performance quantum dots. New and existing customers are welcome to inquire and make purchases!

Product Features:

(1) Broad excitation wavelength range and narrow emission wavelength range allow the same excitation light to simultaneously excite multiple quantum dots, emitting fluorescence at different wavelengths. Compared to traditional fluorescent dye molecules, the excitation light wavelength range of fluorescent dyes is narrower, requiring multiple wavelengths of excitation light to excite various fluorescent dyes, which brings significant inconvenience in practical applications.

(2) The emission peaks are narrow and symmetrical with minimal overlap, whereas fluorescent dye emission peaks are not only broad and asymmetrical but also exhibit severe tailing and significant mutual overlap, making them prone to interference and posing difficult challenges for analysis and detection.

(3) The emission wavelength can be tuned by controlling its size and composition, allowing the synthesis of quantum dots with any desired wavelength. The spectral peaks of uniformly sized quantum dots exhibit a symmetric Gaussian distribution.

(4) The fluorescence intensity and stability are approximately 100 times greater than those of ordinary fluorescent dyes, allowing for long-term observation of the labeled objects.

(5) After various chemical modifications, quantum dots exhibit good biocompatibility, enabling specific binding, minimal harm to organisms, and suitability for in vivo biological labeling and detection. In contrast, fluorescent dyes are generally more toxic and have poor biocompatibility.

Oil-soluble CuInS2/ZnS quantum dots

Oil-soluble CdZnS/ZnS quantum dots

Zn2+-doped carbon quantum dots